Table 2 Characteristics of the overall population and of patients with or without recurrence
From: Surveillance for early stages of colon cancer: potentials for optimizing follow-up protocols
Characteristic | Total | Recurrence | Non recurrence | p value |
|---|---|---|---|---|
Overall patients | 196 | 11 (5.6) | 185 (94.4) | Â |
Gender | ||||
Male | 117 (59.7) | 5 (45.5) | 112 (60.5) | 0.356 |
Female | 79 (40.3) | 6 (54.5) | 73 (39.5) | Â |
Median age (range), years | 70 (40–89) | 71 (63–81) | 70 (40–89) | 0.262 |
ASA score | ||||
1 | 7 (3.6) | 0 | 7 (3.8) | 0.661 |
2 | 116 (59.2) | 7 (63.6) | 109 (58.9) | |
3 | 66 (33.7) | 3 (27.3) | 63 (34.1) | |
4 | 7 (3.6) | 1 (9.1) | 6 (3.2) | |
Tumor site | ||||
Right colon | 83 (42.3) | 2 (18.2) | 81 (43.8) | 0.009 |
Trasversum colon | 17 (8.7) | 0 | 17 (9.2) | |
Left colon | 94 (48.0) | 8 (72.7) | 86 (46.5) | |
>1 location | 2 (1.0) | 1 (9.1) | 1 (0.5) | |
T | ||||
1 | 10 (5.1) | 0 | 10 (5.4) | 0.772 |
2 | 56 (28.6) | 3 (27.3) | 53 (28.6) | |
3 | 121 (61.7) | 7 (63.6) | 114 (61.6) | |
4a | 9 (4.6) | 1 (9.1) | 8 (4.3) | |
Stage | ||||
1 | 65 (33.2) | 3 (27.3) | 62 (33.5) | 0.726 |
2A | 122 (62.2) | 7 (63.6) | 115 (62.2) | |
2B | 9 (4.6) | 1 (9.1) | 8 (4.3) | |
Grading | ||||
1 | 15 (7.7) | 0 | 15 (8.1) | 0.349 |
2 | 166 (84.7) | 11 (100) | 155 (83.8) | |
3 | 15 (7.7) | 0 | 15 (8.1) | |
Lymph nodes retrieved | ||||
> = 12 | 153 (78.1) | 6 (54.5) | 147 (79.5) | 0.066 |
<12 | 43 (21.9) | 5 (45.5) | 38 (20.5) | |
Vascular invasion | ||||
yes | 9 (4.6) | 2 (18.2) | 7 (3.8) | 0.083 |
no | 187 (95.4) | 9 (81.8) | 178 (96.2) | |
Lymphatic invasion | ||||
yes | 32 (16.3) | 4 (36.4) | 28 (15.1) | 0.084 |
no | 164 (83.7) | 7 (63.6) | 157 (84.9) | |
Growth | ||||
Infiltrative | 108 (55.1) | 7 (63.6) | 101 (54.6) | 0.784 |
Expansive | 88 (44.9) | 4 (36.4) | 84 (45.4) | |
Lymphocyte infiltration | ||||
no | 60 (30.6) | 6 (54.5) | 54 (29.2) | 0.301 |
small | 19 (9.7) | 1 (9.1) | 18 (9.7) | |
small-moderate | 71 (36.2) | 2 (18.2) | 69 (37.3) | |
moderate | 22 (11.2) | 0 | 22 (11.9) | |
severe | 24 (12.2) | 2 (18.2) | 22 (11.9) | |
Setting | ||||
 elective surgery | 180 (91.8) | 11 (100) | 169 (91.4) | 0.605 |
 emergency | 16 (8.2) | 0 | 16 (8.6) | |
Blood transfusions | ||||
 no | 164 (83.7) | 10 (90.9) | 151 (81.6) | 0.707 |
 yes | 35 (16.3) | 1 (9.1) | 34 (18.4) | |
Fibrosis | ||||
10 | 100 (51.0) | 3 (27.3) | 97 (52.4) | 0.054 |
20 | 28 (14.3) | 2 (18.2) | 26 (14.1) | |
30 | 22 (11.2) | 2 (18.2) | 20 (10.8) | |
40 | 12 (6.1) | 1 (9.1) | 11 (5.9) | |
50 | 12 (6.1) | 0 | 12 (6.5) | |
60 | 8 (4.1) | 0 | 8 (4.3) | |
70 | 11 (5.6) | 2 (18.2) | 9 (4.9) | |
80 | 3 (1.5) | 1 (9.1) | 2 (1.1) | |
90 | 0 | 0 | 0 | |
100 | 0 | 0 | 0 | |
Fibrosis grade | ||||
High (> = 50 %) | 34 (17.3) | 3 (27.3) | 31 (16.8) | 0.408 |
Low (<50Â %) | 162 (82.7) | 8 (72.7) | 154 (83.2) | |
Budding | ||||
High (> = 10 foci) | 38 (19.4) | 4 (36.4) | 34 (18.4) | 0.229 |
Low (<10 foci) | 158 (80.6) | 7 (63.6) | 151 (81.6) | |